Home / 1,909.35-2,634.33-1,236.09

Finding the Fourth Proportional to 1,909.35, 2,634.33 and 1,236.09

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Solution

The fourth proportional to 1,909.35, 2,634.33 and 1,236.09 is: 1,705.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909.35 : 2,634.33 = 1,236.09 : x
  2. Step 2: Convert to fraction form
    1,909.35/2,634.33 = 1,236.09/x
  3. Step 3: Cross multiply
    1,909.35x = 2,634.33 × 1,236.09
  4. Step 4: Simplify right side
    1,909.35x = 3,256,256.20
  5. Step 5: Solve for x
    x = 3,256,256.20/1,909.35
  6. Step 6: Final answer
    x = 1,705.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.